Dionex AD20 UV Detector

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Instrument Details

Dionex AD20 UV Detector
Model AD20
Item no st1834
Manufacturer Dionex
Available 1
Price Please Call
Warranty 3 month RTB Warranty

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This Dionex AD20 Absorbance Detector is a dual-beam, variable wavelength photometer. Full spectral capability is provided by two light sources: a deuterium lamp for ultraviolet detection and a tungsten lamp for visible wavelength operation. The Dionex AD20 features programmable wavelength selection and automatic calibration for precision, reproducibility, and ease-of-use.

Warranty Terms & Conditions For Used Equipment

Note: Our warranty terms quoted for this instrument apply to mainland UK customers. For clients outside of this locale, please enquire at point of sale.

hplc4sale.co.uk (Jaytee Biosciences Ltd) warranty all reconditioned instruments for a pre-agreed period. This period can be from 30 days to 1 year from the date of installation / delivery of the instrument. Generally newer equipment has a longer warranty than older equipment.

Additional warranty periods can be negotiated at the time of purchase if required.

The list below outlines the items covered by our warranty:

Parts Included In Warranty

  • Electronic Assemblies – e.g. PCB’s, Transducers, Interface Cards
  • Mechanical Assemblies – e.g. Pump Drive assemblies, XYZ Transport Systems
  • Power Supplies – e.g Low and High Voltage Supplies, Lamp Supplies, Cases, Metalwork and Enclosures.
  • Major assemblies – PCB’s, Power Supplies, and Displays etc covered for warranty term.

Typical Parts NOT Included In Warranty (detectors)

  • Cell Assemblies
  • Cell Rebuild Kit
  • Lamp Assembly
  • Wetted Path Components
  • Software Updates
  • Tubing and Fittings
  • Capillaries
  • Consumable Parts
  • Tools
Download specification


  • Light Sources: Deuterium lamp (30 W) for ultraviolet spectrum analysis; tungsten lamp (10 W) for visible spectrum analysis.
  • Wavelength Range: 190 to 800 nm variable;continuous in 1 nm steps.
  • Wavelength Accuracy: ± 1 nm.
  • Bandwidth: 8 nm
  • Absorbance Range: Discrete settings: of 0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1.0, and 2.0 AU
  • Autozero Capability: 2 AU
  • Autozero Accuracy: ± 100 uAU
  • Noise: < 10 uAU peak-to-peak at 254 nm, 2-second rise time, flowing deionized water.
  • Drift: < 100 uAU/hour (after warm-up), < 100 uAU/oC (after warm-up)
  • Filter Rise Time: Discrete settings of 0.05, 0.1, 0.2, 0.5, 1.0, 2.0, 5.0, or 10.0 seconds.
  • Analog Output Range: Discrete settings of 0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1.0, and 2.0 AUFS
  • Cell Body: PEEK.
  • Volume and Optical Path Length: Standard bore cell, used with 4 mm (0.016 in) columns: 9 mL volume, 10mm (0.002 in) optical path length.
  • Maximum Operating Pressure: 1.38 mPa (200 psi) with a heat exchanger; 3.45 mPa (500 psi) without a heat exchanger.
  • Chemical Compatibility: The use of a base stronger than 0.1 M is not recommended, as it will etch the silica windows.
  • The unit is fully operational and in good working order.

    Installation option available:

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    * This Dionex AD20 UV Detector comes with an Operational Qualification Certificate, and has been tested for wavelength accuracy.

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    • +44 (0) 1227 265333
    • sales@jaytee.com